The point is, you are missing the entire point.
If you blindfold me and spin me around in a circle, take off the blindfold and tell me to walk straight ahead, with NO DEVIATION; I can guarantee to you that eventually I will walk into "something". Is it a target, or "some target"? Is it something I just ran into, or something I purposely searched for?
"Everything" is a target. The problem is, you are calling all card interactions "targets" when they are not always the intended target as far as from the player's selective point of view.
The Player is the only one who can select a target. If a card effect selects the target on its own, then it is not considered "targeting" for the simple fact that the player had no involvement with directing the effect to a single source. The only time a player may select the destruction of a monster when
Smashing Ground is activated is when there are multiple targets with the
SAME defense, and that still does not indicate a targeting effect, only selective resolution.
This is not a catch all by any means, but unless your opponent has only one monster on the field, how many of us find ourselves looking at multiple face-up monster's stats everytime we activate
Smashing Ground? That in itself should tell you that it isnt a targeting effect if you have to make sure you destroy the right monster....